Dust gun



Sept. 21 1926. 1,600,861

- c. G. ALLGRUNNy v DUST GUN 3 Filed: March l0, 1924 2 Sheets-Sheet l i'I! .l /l/ f", i l i l/ l I I l] .ff a a f2 ff 'if 43 Z4 ze zx l I l (z3J 254.

Ammers er QD sept. 21 192,6. 1,600,861

C. G. )ALLGRUNN DUST GUN Filed March l0, 1924 2 Sheets-Sheet 2 G'Armnnffw small manually operated 1o Patented Sept. 21, 1926-.

Uni-'raA sari-ijs CARL s. ALLGRUNN, or MIDDLEPORT, NRW YORK, AssreNoR'roNIAGARA sPRAYnR oo., or MIDDLEEORT, NEW YORK,- A CORPORATION or NEWYORK.

l DUST GUN.

Application filed March 1o, i924'. ser'iai No. fseaze.A

' .The present invention relates to new and useful improvements industing devices, and it pertains more particularly todevices of thischaracter especially adapted ffor dis'- tributing insecticide or thelike on' growing crops. j j Y It is one of thepriinary vobjects of thepresent invention to provide a relatively distributing insecticide. i

'It is a further object of the invention to v lprovide a device offthischaracter 'in which the insecticide in the jforni ot power'isprecipitated by means of an air blast.

t is a further object of the invention to `combine with the device meansfor placing Y `Vthe air'under pressure which means'isdouble i acting,thus insuring a constant supply of air under pressure. ,p 1 y With thevabove and other 'ob]ects in view,

reference is had to-the accompanying draw-V ings, in which-' Figure 1 isa plan view partlyin section,

of a device constructed in'accordancewith the present invention; 'Y

Fig. 2 is a view in side elevation of the improved device;

Fig. Sois a detail sectional view taken von' the line 3-3 of Fig. 1';

Fig. 4 is a detail view, partly in elevation and partly in section, of adischarge nozzle used in combination with the device, and

Fig. 5 is a similar view taken' at right angles to Fig. 4.

Referring more particularly to the drawings, the device comprises ahousing 10. This housing isformed with a rectangular portion 11 and acircular portion 12, and interposed between the rectangular portion 11and the circular portion 12, there isa curved partition 13. Thiscurvedpartition 13 divides the housing' into a pump `cylinder. 14 and adust or powder chamber 15. Leading from the dust or powder chamber 15,there is a discharge pipe 16, and positioned over the inner end .of thedischarge pipe 16 there is a screen or the like, 17, which serves tolprevent particles or lumps of dust from be` ing discharged through thepipe 16. Carried by the side wall of the pump cylinder 14, there is astuffing box 18,and mounted portable device for i, p Y

l Y v character 28 designatesra. small housing, and

piston on its inward fstrokevand to relieve .the vshock at tliefend ofits outward stroke.

This piston 19 is connected by means lof ay other end it is pivotallyconnected, as atY 25,'

to a bracket 2 6 rigidly secured as at 27 to the wall of that part ofthe housing which forms the dust chamber 15." VThe reference mountedthereinV there is a' flap valve l29 which controls an opening30"le`ading from` the interior of the pump vcylinder 414 to the yhousing 28. The side walls'of the housing i l v10 areeach provided withan opening 31, 70

and leadingfroin each ,opening 311 into the dust chamber 15, there isaipipe which coIistitutes la vdischarge nozzle 3 It will benoted thatthe construction just described is` duplicatedon opposite sides of thehousing 10,l there being two ,housings 28, i

two openings 30, and two valves 29. The pumppcylinder `14 isefalsoprovided at each end withfopenings 33 controlled 4by flap valves 34, andthis'construction provides the airintakefor the opposite ends ofthe'pump cyl-1nder14'.= f w On the s ide of thev housing 110 opposite tothat which carriesV the pivoted llever 231, a handle 40-is1provided,andsuchihandle'is spaced with respect tothe ,housing 10 and carried bybrackets '41. y

-One of the side walls of the powderor dustchamber 15 isr provided withan opeii-- ing adapted to be closed by a screw-threadedcover 42, andsuch cover is provided with a handle 43 by. means. of which it isscrewedi into position to close the opening.

ing insecticide in powder forni into the dust or,- powder chamber 15. ii

Iii-Figs. 4 and 5 is shown' anozzle for use in connection with thedevice, and such nozzle comprises a .tubular member 45, the end 46 ofwhich isadaptedto be received upon i118 construction provides means forintroduo-v f alternately drawn through the intake v-a'h Vchamber itbecoinesfla A p Y eide contained therein, andas the all',passesy pigeif@ iuldull "in order n .render suchA chamber airti,` ht.v The handleLl() 1s n'ow graspedv 1n one hand and the handle 2i vof the pivotedlever 23 fgraspedgin the otherV hund. Through the -inediuin o' the lever23 the 'piston 20 is lre-1 ciprocated in the cylinder 40, and ai 1 33and discharged thr'oughthe .valresd` and by means of the dischargenozzles 32 is `introduced intonth'e chamber. l5 under lp` sure 'As theair vis,fntreduced into the en `with the Asceti- I ut it for* `a.Vehicle for such'iiisecticide through :the discharge noz" le f rom theforegoing `t apparent that tliepresent invention provides a neu7 andefficient*hand-operated deviceV :for dusting,`

growingleropgand the devi/eels of such l a constructlonas to render'itreadily ,pertable `"andca Dahle or' directinof a blast of ma- Y In adevicev `of teri'alfdischarged therefrom. f VWhat is claimedzisp;

K the character described,

i allioiisinggv.fa partition dividing said houslng into a pump',cylinderand an insecticide n l compartment,*apump mounted in the pumpf Lof themst-:mentioned Messine, valve es- 35,v

'of thepump cylinder e .ilry housing, a discharge ynozzleleadtblshilglcof mun f1` en etweenfeach eind and its respeetnfecauxingfrom "each of saiduauvxfiliary housings intoV the insecticidec,ompartmentj said disch'arge nozzles being angularly disposal withrespectto each other; Y Y

2.111 a portable hand cluster, a Vmain housing having tW-o adjacentopenings in leach of two oppositelydisposed side Walls,

anauxiliary housing on the exterior oli' e. ch o' said side Walls andenclosing its respective aforementioned openings, corit-rolling` Valvefor one opening of each pair of said tending v'transYerselyv of thevn'iain ,housing and .dividing the saine into a pump chamber and aninsecticide compartment, a pump mounted in said pump'ch amber andadapted.

Ato disclia'rzgfer` air alternately through' the aforementionedvalve-controlled openings, a nozzle projecting liroin each ci the otheropenings into the insecti'eideA compartf ment. e

In a portable dust guinahousing have ing a powder Vchamber and 4a pump`1 chainbei', a discharge 'nozzle at one end of said powder chamber,said nozzle extending sul stant-ially at right angles to the axis otsaidV pump chamber, air conductingl means connecting said pump chamberwith said pow'- derchamber, a piston reciprocable in 'said pump chamber,a ypiston stem A protruding from one end of said pump chamber, a sup-`porting' arm extending lateralljy of the same vside of the housing assaid rp-is'to'n stein,a lever -pivotally .attached at onefend to saidsupporting arm and having a. handlefatvits with the outer end 'portionof saidpiston stem, and a second handle supported on said housing atythe side of the latter opposite to saidrlev'er. y e CARL G. LLGRUNN.

Aopposite end, a link connecting said lever i

